Divide and then interpret the remainder.If each hotel room can hold 4 people, how many rooms are needed for 89 people?
A. 21 rooms with space left for 1 person
B. 21 rooms with space left for 3 people
C. 22 rooms with space left for 1 person
D. 23 rooms with space left for 3 people
Answer: D
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Use logarithmic differentiation to find the derivative of y.y = (x3 + 1)3(x - 1)2x4
A. 
+ 
+ 
B. (x3 + 1)3(x - 1)2x4(3ln(x3 + 1) + 2ln(x - 1) + 4ln x)
C. (x3 + 1)3(x - 1)2x4
D. (x3 + 1)3(x - 1)2x4
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.tan ? = 3, ? < ? < 
Find tan 
.
A. 
B. 
C. 
D. 
Answer the questionSuppose z varies directly as the square of x and inversely as y. If x is halved and y is tripled, what happens to z?
A. z is six times as large as before
B. z is multiplied by 
C. z is one-sixth as large as before
D. z is one-twelfth as large as before
Add. Do not use a number line except as a check.- 
+ 
A. - 
B. - 
C. 
D. 